What Do Grade-1 Atrophy Of The Infraspinatus, Tenosynovitis And Tendinosis Of The Long Head Of The Biceps Suggest?

Indication: Chronic persistent left shoulder pain, decreased ROM COMPARISON: None TECHNIQUE: Multiplanar multisequence MRI of the left shoulder without intravenous contrast. Findings: No evidence of acute fracture, osteonecrosis, or suspicious marrow lesion. Degenerative changes of the acromioclavicular joint. These hepatic changes of the greater tuberosity. There is a full-thickness supraspinatus tear at the anterior aspect of the footplate measuring 3 mm in AP dimension and 5 mm in the transverse plane. Additionally, there is a partial-thickness undersurface tear at the junction of the posterior aspect of the supraspinatus and anterior aspect of infraspinatus tendons at the footplate, measuring up to 3 mm in the transverse plane and 4 mm in maximum AP dimension. This is on a background of supraspinatus tendinosis. There is an undersurface tear of the distal superior aspect of the subscapularis near its insertion, measuring up to 9 mm in the transverse plane 1.1 cm in the craniocaudal plane. The infraspinatus and teres minor tendons are intact. The long head of the biceps tendon is intact with tenosynovitis and tendinosis of the intra-articular portion. There is degenerative fraying of the labrum. No significant effusion. Mild grade 1 atrophy of the infraspinatus 1. Full-thickness supraspinatus tear at the anterior aspect of the footplate with a partial-thickness undersurface tear of the posterior aspect of the supraspinatus near the footplate as described above. 2. Partial-thickness undersurface tear of the distal superior aspect of the subscapularis near its insertion. 3. Tenosynovitis and tendinosis of the long head of the biceps.